Finding the Fourth Proportional to 2,530.24, 3,795.34 and 681.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,530.24 : 3,795.34 = 681.20 : x
2. Step 2: Convert to fraction form
   2,530.24/3,795.34 = 681.20/x
3. Step 3: Cross multiply
   2,530.24x = 3,795.34 × 681.20
4. Step 4: Simplify right side
   2,530.24x = 2,585,385.61
5. Step 5: Solve for x
   x = 2,585,385.61/2,530.24
6. Step 6: Final answer
   x = 1,021.79